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2005-2009 Ford Mustang GT 4.6L Mantic Clutch Twin Disc Clutch Kit - 8 Bolt 10 Spline
2005-2009 Ford Mustang GT 4.6L Mantic Clutch Twin Disc Clutch Kit - 8 Bolt 10 Spline
$2,210.00
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LS1/LS6 AFR 205cc Mongoose Street Heads
[1520]


$1,909.99
   Manufacturer:Air Flow Research
   Description:For the ultimate street LS1/LS6 aluminum cylinder head AFR’s all new 205cc emission legal head are your only choice. Specifically designed for 1995 to present Gen-3 Chevy Corvettes, Camaros, and trucks. AFR’s LS1 head offers unmatched flow performance (300 CFM at .600lift) and features 2.020 intake and 1.600 exhaust valves with AFR’s iron ductile interlocking valve seats. With only 205cc port volume (same as stock LS1 head) this is an incredibly 70 CFM increase over stock casting creating unbelievable port velocity and performance. The 205cc is ideal for normally aspirated 346C.I. to 396C.I. It is available with only 66cc combustion chambers. An affordable “as cast” version is also available, just choose what you would like in the drop-down menu below.

AFR’s LS1 is a direct bolt on, no special parts required. Structural features like Air Flow Research’s trademark 3/4” thick head deck, a must for blown and nitrous applications, reinforced rocker stud bosses, and thick wall runners provide unparalleled durability. An exclusive new modern combustion chamber design with double quench pad area helps the LS1 generate huge low and mid lift airflow numbers. If you need a snake charmer for that pesky neighborhood “Cobra Mustang” look no further.

Note: Hydraulic roller cams typically experience valve float at 6000-6200 RPM because of their fast ramp rates. AFR suggest you upgrade your springs to AFR part #8019, 1.250 O.D. double with dampener valve spring with higher pressures(145lbs on seat, 390+lbs at .600 lift) to reduce the chances of valve float at higher RPM’s with the #8019 spring AFR recommends Comp Cams R style lifter.

Note: Heads are sold as a set. Available with parts ready to install or without parts, please choose in the drop-down menu below. Not legal for sale or use on pollution controlled motor vehicles in the United States. The heads that are priced above are the heads described in the title.

Basic Package Components

100% CNC Ported Combustion Chambers
100% CNC Ported Exhaust Ports
100% CNC Ported Intake Ports
3-angle Raduised Valve Job
Intake Valve, 2.020” standard length #7207
Exhaust Valve, 1.600” standard length #7228
1.250” OD Hydraulic Valve Spring with dampner, 130 lbs. on seat, .581” maximum lift #8017 (upgrades available)
7º 1.250 Titanium Retainers: #8512
7º Valve Locks: #9007
Valve Seals: #6612
Hardened Shims: #8042
Intake Valve Seats: #9058
Exhaust Valve Seats: #9069
Bronze Valve Guides: #9051

All Accessory Holes are Predrilled & Tapped!

Specifications, Features, and Supporting Components

Head Torque: 11MM ARP 70w/Moly 8mm 23w/Moly
Exhaust Port Gasket: GM#12558573/ Fel-Pro #1440 AFR#6857
Intake Port Volume (as cast): 200cc
Intake Valve Size: 2.020
Exhaust Port Volume (as cast): 78cc
Head Gasket: GM#12498543 or 12498544, Fel-Pro#1041, AFR#6847
Exhaust Valve Size: 1.600"
Head Bolts & Studs: Standard ARP, AFR #6330, #6331 & #6332
Head Bolt Washers: Standard ARP, AFR #6328 & #6329
Suggested Manifold: LS6 or FAST
Accessory Holes Are Drilled: Yes
Spark Plug Starting Range: AC 41-974 Platinum
Combustion Chambers: 66cc or 76cc
Spring Pocket can: 1.250-can be machined to 1.550 O.D.
Valve Spacing: Stock
Rocker Arms: Stock
Valve Angle: Stock
Angle Mill (milling available): .008” per cc
Flat Mill (milling available): .006” per cc

   Available Options: Options:
This product was added to our catalog on Wednesday 29 August, 2007.
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